Journal of the Chemical Society A Inorganic Physical Theoretical · 1970 · 14 citations · 0 references
Natural SciencesChemistryCrystal StructureInorganic ChemistryMagnetic MaterialsAntiferromagnetic MaterialsAntiferromagnetismCoordination ChemistryMetal-ligand BondingTransition Metal ChemistryTransition Metal ComplexesAntiferromagnetic ExchangeAntiferromagnetic OrderCarbonyl Oxygen CoordinationCoordination Compound MagnetismMagnetic Properties Of Coordination ComplexesMagnetic Properties Of Transition Metal ComplexesMagnetism Of Transition Metal Complexes
Two series of chelate copper(II) complexes of the three triketones: heptane-2,4,6-trione, 1-phenylhexane-1,3,5-trione, and 1,5-diphenylpentane-1,3,5-trione are reported. The i.r. spectra show that the co-ordination of these ligands occurs via the carbonyl oxygen atoms. For one of these series, i.e.[(CuL)2], the room-temperature magnetic moments of ca. 0·6 B.M. suggests antiferromagnetic behaviour; this is supported by the magnetic behaviour of these complexes over a temperature range which shows them to be one of the strongest antiferromagnetic copper(II) systems yet reported.